Ukud Cobra

The body is the whole argument: five toughness with deathtouch attached. That combination does not so much fight as forbid. The five toughness survives most of what wants to trade in combat, while deathtouch means anything that does block or get blocked dies regardless of its size, so an attacker contemplating the ground has to do brutal math. A 6/6 can punch through and kill this, but only by dying to deathtouch in the same exchange: you lose a 6/6 to remove a 2/5, a trade no aggressor wants to make. That is the deterrent at work. The cost of the role is that it offers no clock of its own; two power applies no pressure and wins no races, so the deck running it is buying a defensive permanence it has to pay for elsewhere. The four-mana price is the line between this and a true brick wall: you are spending real tempo for a body that freezes the board rather than breaking it open. Its functional kin are the other deathtouch blockers that lean on toughness rather than power, the ones whose job is to make a board state stall. What it sells is a ground stalemate on demand, which is either exactly the lock a control or attrition deck wants or precisely the card it never has room for.